ı purchased my card three days ago. while ı am playing nfs most wanted at 1024*768 full settings it slows sometimes ı mean it stop for a second then goes on.ı had a 6600 gt and ı could play better at the same settings .. ı should admit that the visuals are far better and different but everytime it stops one in a while it is killing me what do you think is the problem? my cpu? or some driver issues ? do you have the same problem?
If you are good at editing the reg try this dude it worked for me and other games that did the same thing as you
Open the [HKEY_LOCAL_MACHINESOFTWAREMicrosoftDirect3D] key and change the value of DisableDP2 to "1" to disable Direct3D, or "0" to enable it. Reg entry would be [DisableDP2] 0 ,with out the brackets create a dword key than add [disableDP2] value =0
[HKEY_LOCAL_MACHINESOFTWAREMicrosoftDirect3DDrivers] key and change the value of SoftwareOnly to "1" to use software emulation or "0" to disable it and this create a dword name SoftwareOnly and value 0